Sugar concentration and timing of feeding affect feeding characteristics and survival of a parasitic wasp

Williams, Louis O.; Deschodt, Pauline; Pointurier, Olivia; Wyckhuys, Kris A. G.

doi:10.1016/j.jinsphys.2015.05.004

Cited by 10 publications

(11 citation statements)

References 40 publications

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“…Overall, the impact of sugar concentration on the longevity of natural enemies is variable. In previous studies with parasitoids, increased sugar concentration had positive (Williams et al, 2015) or negative impact on longevity (Siekmann et al, 2001). In practical terms, our results suggest that F. acarisuga obtains no fitness benefits when supplied with a viscous sugar source whereas A. aphidimyza, as a predator of aphids, might be better suited to exploit more viscous sugar sources such as dried-up honeydew.…”

Section: Nutritional Ecologysupporting

confidence: 50%

A bittersweet meal: The impact of sugar solutions and honeydew on the fitness of two predatory gall midges

et al. 2020

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This article is made publicly available in the institutional repository of Wageningen University and Research, under the terms of article 25fa of the Dutch Copyright Act, also known as the Amendment Taverne. This has been done with explicit consent by the author.Article 25fa states that the author of a short scientific work funded either wholly or partially by Dutch public funds is entitled to make that work publicly available for no consideration following a reasonable period of time after the work was first published, provided that clear reference is made to the source of the first publication of the work.This publication is distributed under The Association of Universities in the Netherlands (VSNU) 'Article 25fa implementation' project. In this project research outputs of researchers employed by Dutch Universities that comply with the legal requirements of Article 25fa of the Dutch Copyright Act are distributed online and free of cost or other barriers in institutional repositories. Research outputs are distributed six months after their first online publication in the original published version and with proper attribution to the source of the original publication.You are permitted to download and use the publication for personal purposes. All rights remain with the author(s) and / or copyright owner(s) of this work. Any use of the publication or parts of it other than authorised under article 25fa of the Dutch Copyright act is prohibited. Wageningen University & Research and the author(s) of this publication shall not be held responsible or liable for any damages resulting from your (re)use of this publication.

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Section: Nutritional Ecologysupporting

confidence: 50%

A bittersweet meal: The impact of sugar solutions and honeydew on the fitness of two predatory gall midges

et al. 2020

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“…The viscosity of highly concentrated sugar solutions may also affect the ingestion facility of parasitoids. Intermediate concentrations revealed to greater contribute to P. lounsburyi longevity (Williams et al 2015), increasing the time spent searching for hosts and reducing resting and feeding periods, when wasps are more subjected to predator attacks (Völkl and Kroupa 1997;Lightle et al 2010).…”

Section: Effect Of Food Concentration and Frequencymentioning

confidence: 98%

“…Timing and sugar concentration of a single feeding activity may also influence Psyttalia lounsburyi (Silvestri) (Hymenoptera: Braconidae) longevity, increasing the survival chances from 32.3% to 95.4% compared to water control after 2 days (Williams et al 2015). Furthermore, parasitoids exposed to longer food-deprivation periods show longest feeding durations, and thus major energy intakes (Williams et al 2015).…”

Section: Effect Of Food Concentration and Frequencymentioning

confidence: 99%

The impact of adult diet on parasitoid reproductive performance

et al. 2017

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Diet is one of the most common inﬂuences on parasitoid reproductive traits. The life span, mating ability, fecundity, fertility and sex ratio of parasitoids can be affected by the quality of the adult diet. In the ﬁeld, parasitoids can rely on different hosts and non-host nutrient sources, such as ﬂoral and extraﬂoral nectar, hemipteran honeydew and pollen, and various artiﬁcial diets have been used in mass rearing. In addition, some parasitoid species obtain nutrients by feeding on their host while adult (host feeding). In this review, we summarize current knowledge on the impact of the adult diet on the reproductive behavior of hymenopteran and dipteran parasitoids, with a particular focus on longevity, offspring production and host searching traits. First, we focus on food preferences and learning abilities of parasitoids to discriminate high-quality diets.\ud Second, we analyze the impact of the adult diet on longevity, examining different natural and artiﬁcial food sources as well as the effect of their concentration and frequency. Third, we highlight the impact of the adult diet on host foraging. Fourth, we review the impact of adult diet on parasitoid offspring with special reference to (1) egg load, maturation and resorption, (2) parasitism and (3) progeny production and sex ratio. Finally, a number of implications for biological control and integrated pest management are discussed

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“…This is known as non-reproductive effects and they include host mutilation, pseudoparasitism, and aborted parasitism, among others [18]. Additionally, because of the low availability of food (e.g., hosts and/or sugars) and its spatial and temporal variability in the field, determining the effects of single feeding events in parasitoids is critical for a better understanding of their nutritional needs and hence the frequency at which they need to forage for food [19,20].…”

Section: Introductionmentioning

confidence: 99%

Factors affecting the biology of Pachycrepoideus vindemmiae (Hymenoptera: Pteromalidae), a parasitoid of spotted-wing drosophila (Drosophila suzukii)

et al. 2019

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Pachycrepoideus vindemmiae is a wasp that parasitizes and host-feeds on pupae of the invasive spotted-wing drosophila (SWD, Drosophila suzukii ). Few studies have addressed interactions between these two species and little is known about the potential of this parasitoid as a biocontrol agent of SWD and the different variables that may affect it. Here, we investigated the impact of extrinsic and intrinsic factors on life-history traits of P . vindemmiae . Both constant (entire adulthood) and limited (30 minutes) supplies of water + honey, honey, or host increased parasitoid survival compared to controls (water or fasting). Water + honey caused the highest parasitoid survivals (35–60 days), independent of supply period, sex, and host availability. Females were intrinsically more resistant to water- and honey-deprivation than males, and host-feeding elevated such resistance even higher. Constant honey supply (either with or without water) supported the highest host-killing capacities (= capacity to kill hosts) ( ca . 600 SWD pupae/wasp). However, in young females (4–9 days old), the impact of honey availability (with or without water) was insignificant while water deprivation (either with or without honey) caused the highest host-killing potential. This indicates that although sugar becomes a critical nutritional resource as females age, young females depend more on water than sugar to reproduce. Neither water nor honey affected the sex ratio of young females, but when we considered the entire adulthood, the availability of honey caused the lowest proportion of females (0.50), independent of water availability. Neither water nor honey affected parasitoid emergence rate (0.97), independent of female age. Based on survival and host-killing capacity, we conclude that P . vindemmiae has a tremendous biocontrol potential against SWD. Both limited and constant supply of water, sugar, and host increase parasitoid survival, while constant supply of water and/or honey enhance its host-killing potential and decrease sex ratio depending on maternal age.

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Sugar concentration and timing of feeding affect feeding characteristics and survival of a parasitic wasp

Cited by 10 publications

References 40 publications

A bittersweet meal: The impact of sugar solutions and honeydew on the fitness of two predatory gall midges

A bittersweet meal: The impact of sugar solutions and honeydew on the fitness of two predatory gall midges

The impact of adult diet on parasitoid reproductive performance

Factors affecting the biology of Pachycrepoideus vindemmiae (Hymenoptera: Pteromalidae), a parasitoid of spotted-wing drosophila (Drosophila suzukii)

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